Flash diffuser



FIG. 1 is a perspective view of a flash diffuser, showing our new design;

FIG. 2 is a front elevational view thereof shown on a smaller scale;

FIG. 3 is a top plan view, the bottom plan view being identical thereto;

FIG. 4 is a rear elevation view thereof;

FIG. 5 is a side elevational view thereof;

FIG. 6 is a perspective view of a second embodiment thereof, the only difference residing in the use of a smooth interior surface;

FIG. 7 is a rear elevational view of said second embodiment; and

FIG. 8 is a side elevational view of said second embodiment. 

The ornamental design for a flash diffuser, as shown and described. 